<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<script>
    // includes indexof 检测数组中是否包含某个元素
    const mingzhu=['西游记','红楼梦','三国演义','水浒传']
    console.log(mingzhu.includes('西游记'))
    console.log(mingzhu.includes('金瓶梅'))

    // 幂运算
    console.log(2**10)
    console.log(Math.pow(2,10))
</script>
</body>
</html>
